Motor attachment for boats.



W 3. SUENSTQN'.

- MOTOR ATTACHHENT F08 BOATS. APPLICATION FILED FEB. 22. 1916.

Pmamefll May 8, 191? JNVENTFR,

STATES PATENT onnren JOHHSTUN, O1? PQRT CARLING, ONTARIO, CANWA,ASSIGNUE F UNE- HALE T0 30ml! EOETNSUN CLAW HUDGSON, 0F GREGORY,ONTABTQ, CANADA.

IZQTQE ATTACHMENT FOR BQATS.

Specification of Letters Patent.

Patented a ran *2.

Application filed February 12, rare. Serial no. races.

sToN, of Port Carling, in the district of Muskoka, Province of @ntario,Canada,

have invented certain new and useful Tmprovements in Motor Attachmentsfor Boats, of which the following is a specification.

This invention relates to means whereby skids and other light heatscapable of being readily hauled up when not in use may be equipped withmotors, and my object is to devise an attachment which will enable themotor to be placed in the usual place in the bottom of the boat whilethe propeller can beraised to enable the boat to be hauled out orlaunched.

The attachment in the main comprises a casing fitted within the heatover a slot in the keelson. The crank shaft of the motor passes througha stufing box in the end of the casing and is connected with thepropeller shaft by means of a universal joint, the

f propeller shaft and propeller being capable of being housed in saidcasing.

The present invention lies in the means. for supporting and raising andlowering the propeller shaft, and for holding the same raisedsubstantially as hereinafter described and illustrated in theaccompanying drawings in which Figure 1 is a plan view showing a boatequipped with my improved attachment;

Fig. 2 a longitudinal section of part of the same on an enlarged scale;

Fig. 3 a longitudinal section of part of the same with the propellershaft raised;

Fig. 4iaplan view of part of the same partly in section; and

Fig. 5 an end elevation of the spring clip for holding the end of thepropeller protecting skeg.

In the drawings like numeral of reference indicate corresponding partsin the dilferent figures.

The boat is provided with any suitable engine bed to which is securedthe motor 1. While this motor may be located in any positionlongitudinally of the boat, it is pref erably so located that thepropeller on the end of the propeller shaft driven therefrom will belocated not very far aft of the midship section of the heat.

2 is a casing, preferably an aluminum casting, open at its under sideand adapted to receive and hold the propeller shaft and propeller. Thiscasing is provided with the flange 3 by means of which it may beconnected with the keelson or other parts of the bottom of the boat.This casing for the greater part of its length is comparatively narrowto hold the propeller shaft and propeller shaft support, and it isprovided with an enlargement 4 to receive the propeller.

The crank shaft 5 of the motor extends through the forward end of thecasing 2,

which is provided with a suitable stuffing box 6. Within the casing thecrank shaft is connected to the propeller shaft 7 by means of auniversal joint 8. The rearward end of the propeller shaft carries thepropeller 9 of any suitable type.

The propeller shaft is carried so that it may be raised or lowered bythe propeller shaft support 10. This shaft support is pivoted within thecasing by means of a bolt 11 arranged as hereinafter described. Therearward nd of the support carries a suitable bearmg 12 for thepropeller shaft. Preferably the support 10 is double, passing on eachside of the propeller shaft, and the I bearing 12 is hung on a pivot 13between the two parts of the support. The bearing turns on this pivot asthepropeller shaft is raised orlowered, and at the same time slideslongitudinally of the shaft.

At. the junction of the two parts of the support 10 an open bearing 14is formed, which receives the propeller shaft when the latter is in itslowest position. This bearing not only steadies the propeller shaft, butserves as a stop to prevent the latter dropping below a predeterminedposition. The lowest position of the propeller shaft is preferably thatin which it is in alinementcwith thecrank shaft as shown in Fig. 2.

To protect the propeller I provide the skeg 15 which extends rearwardlyfrom the support 10 below the bearing 12. It will be seen that this skegeffectively guards the propeller from any obstruction over which theboat'may run, and serves to automatically push up the propeller shaftand the propeller when the boat is being drawn out of the water.

The rearward part of the casing is higher than the forward part, as roomis needed to receive the support 10 above the propeller shaft when thelatter is raised, whereas the forward part is kept as low as possible tosave weight and room.

vented.

1 propeller shaft. For this purpose a hand The bolt 11, it will be'seenparticularly on reference to Fig. 4:, has the inner side of its headrecessed to receive a packing. lhe nut 16, whichis preferably a closedend nut, is also provided ,with a similar recess so that when the nut istightened all leakage is pre- Within the casing the bolt is squared sothat the support is non-rotatably connected with the bolt. It isevidentthen that by -rocking the pivot bolt 11 the support may be actuated toraise and lower the lever 17 is connected with the bolt. This hand leverengages a retaining quadrant 18 secured to .the side of the casing 2.While any suitable quadrant may be employed, preferably a springquadrant frictionally engaging the hand lever'is employed, as the strainon the hand lever is comparatively small and it is desirable that thelever should 7 not be positively locked in order to prevent any chanceof breakage if the propeller shaft be suddenly forced up by the skegengaging any obstruction over which the boat may be passing.

- To assist in holding the parts in the folding position shown in Fig.3, I prefer to have the end of the skeg engage the spring 19, which issecured to the under side of-the casing as shown in Figs. 2 and 3. lhekeel 20 is, of course, cut out below the casing. 2 and a suitable slotcutthrough the casing and garboard strakes, if necessary, for thepassage of the propeller shaftand propeller.

llhe casing, however, 'fullycompensates for cated in any convenientposition and are not shown or described as they form no part of thepresent invention.

From the above description it will be seen that I have devised anattachment which satisfactorily attains the object of my in vention setout in the preamble to this specification.

What I claim as my invention is:

1. In amotor attachment for boats, the combination of a casing open atits underside and adapted to receive and house a pro peller andpropeller shaft; a crank shaft having a bearing in one. end; apropellershaft carrying apropeller'; a universal joint co'nnectin thetwo shafts; a propeller shaft support pivoted at one end within theeasing, the pivot extending through theside of the casing; and a bearingon said support for the propeller shaft.

2. In a motor attachment for boats, the combination of a casing open atits underside and adapted to receive and house a propeller and propellershaft; a crank shaft having a bearing in one end; ,a' propeller shaftcarrying a propeller; a universal joint connecting the two shafts; apropeller shaft support pivoted at one end within the easing, the pivotextending through the side of the casing; a bearing on said support forthe propeller shaft; and an open bearing in which said propeller shaftrests when the said shaft is in its lowest position.

x 3. In a motor attachment for boats, the combination of a casing openat its underside and adapted to receive and house a propellerandpropeller shaft; a crank shaft having a bearing in one end; apropeller shaft carrying a propeller; a universal joint connecting thetwo shafts; a propeller shaft support pivoted at one end within thecasing, the pivot'extending through the side of the casing; a bearing onsaid support for the propeller shaft; and a projecting skeg extendingfrom said support to a point below the propeller.

4:. In a motor attachment for boats, the combination of a casing open atits underside and adapted to receive and house a propeller and propellershaft; a crank shaft having a bearing in one end; a propeller shaftcarrying a propeller; a universal joint connecting the two shafts; adouble propeller shaft support pivoted at one end within the casing, thepivot extending through the side of the casing; and a bearing for thepropeller shaft pivoted between the parts.

5. In a. motor attachment for boats, the

combination of a casing open at its underside ahd adapted to receive andhouse a propeller and propeller shaft; a crank shaft having a bearlng inone end; a propeller shaft carrying a propeller; a universal jointconnecting the two shafts; a double propeller shaft support pivoted atone end within the casing, the pivot extending through the side of thecasing; a bearing for the propeller shaft pivoted'between the parts;andan open bearing in which said propeller shaft rests when the saidshaft is in its lowest position.

6. In a motor attachment for beats, the combination of a casing open atits under side and adapted to receive and house a propeller andpropeller shafta crank shaft having a bearing in one end; a propellershaft carrying a propeller; a universal joint connecting the two,shafts; a double propeller. shaft support pivoted at one end within thecasing, the pivot, extending. through the side of thexcasing; a bearinfor the propeller shaft supported by parts; and a'solid protecting skegextending from said support to a point below the.propeller.

7. In a motor attachment for boats, the combination of a casing open atits under side and adapted to receive and house a propeller andpropeller shaft; a crank shaft having a bearing in one end; a propellershaft carrying a propeller; a universal joint connecting the two shafts;a double propeller shaft support pivoted at one end within the casing,the pivot extending through the side of the casing; a bearing for thepropeller shaft supported by said parts; an open bearing in which saidpropeller shaft rests when the said shaft is in its lowest position; anda solid protecting skeg extending from said support at said open bearingto a point below the propeller.

8. In a motor attachment for boats, the combination of a casing open atits under side and adapted to receive and house a propeller andpropeller shaft; a crank shaft having a bearing in one end; a propellershaft carrying a propeller; a universal joint connecting the two shafts;a propeller shaft support pivoted at one end withinthe casing, the pivotextending through the side of the casing; a bearing on said support forthe propeller shaft; a protecting skeg ex tending from said support to apoint below the propeller; a boat with slotted bottom over which saidcasing is fitted; and a spring clip secured in a recess in the bottom ofsaid boat to receive and frictionally hold the end of said skeg when thepropeller shaft is raised.

9. In a motor attachment for boats, the.

combination of a casing open at its underside and adapted to receive andhouse a propeller and propeller shaft; a crank shaft having a bearing inone end; a propeller shaft carrying a propeller; a universal jointconnecting the two shafts; oscillatable means extending through the sideof the casing for operation from without; and propeller shaft raisingmeans operable by said oscillatable means.

10. In a motor attachment for boats, the combination of a casing open atits under side and adapted to receive and house a propeller andpropeller shaft; a crank shaft having a bearing in one end; a propellershaft carrying a propeller; a universal joint connecting .the twoshafts; oscillatable means extending through the side of the casing foroperation from without; and

.propeller shaft raising means operable by said oscillatable meanscomprislng arocking member rigidly connected to said oscillatable meansand adapted to engage and lift the shaft.

11. In a motor attachment for boats, the combination of a casing open atits under side and adapted to receive and house a propeller andpropeller shaft; a crank shaft having a bearing in one end; a propellershaft carrying a propeller; a universal joint 7 connecting the twoshafts; oscillatable means extending through the side of the casing foroperation from without; and propeller shaft raising means operable bysaid oscillatable means comprising a rocking member rigidly connected tosaid oscillatable means and provided with a sliding connection with saidshaft.

12. In a motor attachment for boats, the combination of a casing open atits under side and adapted to receive and house a propeller andpropeller shaft; a crank shaft having a bearing in one end; a propeller

